지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2009.5
- 수록면
- 281 - 282 (2page)
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초록· 키워드
오류제보하기
One of the key technologies used in broadband wireless networks, such as HSDPA (High Speed Downlink Packet Access) and mobile WiMAX networks, is link adaptation. Link adaptation is implemented by an Adaptive Modulation and Coding (AMC) scheme which adapts a user’s transmission data rate to its radio conditions on its channel quality feedback to optimize resource utilization.
In wireless networks with link adaptation, the adaptive channel capacity is largely dependent on the users mobility. The wireless resources consumption to provide the mobile user a guaranteed bit rate will depend largely on its location in the cell. The farther the mobile user is from the base station, the lower the data rate the mobile user can achieve and the greater wireless resources the user consumes to meet its QoS requirement. Therefore, the variation of distance r between the mobile user and the base station plays an important role in the fluctuation of wireless resource consumption.
Call admission control (CAC) schemes play an important role in the system resource management. By restricting the number of ongoing calls in the system, the goal of CAC alg ... 전체 초록 보기
In wireless networks with link adaptation, the adaptive channel capacity is largely dependent on the users mobility. The wireless resources consumption to provide the mobile user a guaranteed bit rate will depend largely on its location in the cell. The farther the mobile user is from the base station, the lower the data rate the mobile user can achieve and the greater wireless resources the user consumes to meet its QoS requirement. Therefore, the variation of distance r between the mobile user and the base station plays an important role in the fluctuation of wireless resource consumption.
Call admission control (CAC) schemes play an important role in the system resource management. By restricting the number of ongoing calls in the system, the goal of CAC alg ... 전체 초록 보기
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UCI(KEPA) : I410-ECN-0101-2012-410-003697566